﻿using System;

class SumIntegers
    {
        static void Main()
        {
            //   You are given a sequence of positive integer values written into a string, separated by spaces.
            //   Write a function that reads these values from given string and calculates their sum.

            string[] numbers = Console.ReadLine().Trim('"').Split(' ');

            int sum = 0;
            for (int i = 0; i < numbers.Length; i++)
            {
                sum += int.Parse(numbers[i]);
            }

            Console.WriteLine("The sum is {0}", sum);

        }
    }

